7 Pin Trailer Plug Wiring Diagram Toyota Tundra 2007. Blue pin for electrical brakes. The pollak 7 and 4 pole trailer connector socket part hm40975 is compatible with the oem wiring harness on your 2007 toyota tundra.
A correctly inflated tire can substantially limit the probability of getting a flat. Brown pin for unwanted markers tail lamps and running lights. A 12v power source or backup lights for interior trailer lights or a winch.
The table and diagram below explains the connections used on a 7 pin setup.
Heres the diagram for 7 pin connector. You can confirm this by examining the connectors under the truck that the connector would plug into. Find your wiring diagram to install 7 pin trailer plug tundra 2007page3 here for wiring diagram to install 7 pin trailer plug tundra 2007page3 and you can print out. Yellow pin for left brake light and left handed mark.